In order to not get confused, start by converting cm to m
h=20 cm = 0.2m and r=5cm = 0.05m
The cans are cylinders and we only need the rectangular shape, which is equal to the height x the circumference of the circle (2r(pi)), which you'll have to multiply by 200,000 for the number of cans necessary
your equation is therefore:
A=200,000h(2pi(r))
A=200,000(0.2)(2)(0.05)(pi)
A=4000pi m^2
3.124 * 10^-4
since your decimal is coming forward you need the exponent to be negative
4x=-7 is the answer because "the number" should be the variable
Answer:
12x + 30 - 6 + 9
Step-by-step explanation:
